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Johnstown CO Weather - Clear - 78°F
Clear
78°F
Updated 9:20 pm
Feels Like 78°F
Humidity 34%
Wind ENE 9 mph
Barometer  30.06 in
Dew Point 48°F
Johnstown CO Weather - Clear - 26°C
Clear
26°C
Updated 9:20 pm
Feels Like 26°C
Humidity 34%
Wind ENE 14 km/h
Barometer  101.8 kPa
Dew Point 9°C
Johnstown, CO Weather and Current Conditionsjohnstown co weather forecast

Johnstown, CO Weather Forecast

Johnstown Colorado WeatherJohnstown, Colorado Weather Weather Forecast
14 day API forecast for Johnstown, Colorado. Note. The 7-day weather forecast for Johnstown, CO is the most reliable and accurate forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days in advance.
Johnstown, CO Weather Forecast Dated: 920 PM Sat Sep 05 2026
Expect a very warm period with a mix of sun and clouds and mostly dry weather over the coming period. comfortable humidity and no major pressure swings will dominate.

Saturday, September 5, 2026

Mid-Morning
Johnstown Weather - 2026-09-05 - Morning - Sunny
73°F 23°C
Sunny
Mid-Afternoon
Johnstown Weather - 2026-09-05 - Afternoon - Overcast
95°F 35°C
Overcast
Early-Evening
Johnstown Weather - 2026-09-05 - Evening - Overcast
87°F 31°C
Overcast
Very hot with temperatures reaching 95°F 35°C, sunny in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure. Winds turning from the NNW to the WNW at 6 mph 10 km/h.

Sunday, September 6, 2026

Mid-Morning
Johnstown Weather - 2026-09-06 - Morning - Partly Cloudy
73°F 23°C
Partly Cloudy
Mid-Afternoon
Johnstown Weather - 2026-09-06 - Afternoon - Sunny
91°F 33°C
Sunny
Early-Evening
Johnstown Weather - 2026-09-06 - Evening - Scattered Showers
71°F 22°C
Scattered Showers
Hot and sweltering around 91°F 33°C, scattered downpours possible, with steady humidity and steady pressure. Winds building from SW at 4 mph 6 km/h to NNE at 18 mph 29 km/h. Gusts up to 25 mph 41 km/h.

Monday, September 7, 2026

Mid-Morning
Johnstown Weather - 2026-09-07 - Morning - Overcast
70°F 21°C
Overcast
Mid-Afternoon
Johnstown Weather - 2026-09-07 - Afternoon - Partly Cloudy
90°F 32°C
Partly Cloudy
Early-Evening
Johnstown Weather - 2026-09-07 - Evening - Sunny
81°F 27°C
Sunny
Sizzling hot with 90°F 32°C, overcast in the morning, cloudy in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure. Winds moving from the NW to the SE at 9 mph 15 km/h. Gusts up to 21 mph 33 km/h.

Tuesday, September 8, 2026

Mid-Morning
Johnstown Weather - 2026-09-08 - Morning - Partly Cloudy
74°F 23°C
Partly Cloudy
Mid-Afternoon
Johnstown Weather - 2026-09-08 - Afternoon - Sunny
90°F 32°C
Sunny
Early-Evening
Johnstown Weather - 2026-09-08 - Evening - Scattered Showers
77°F 25°C
Scattered Showers
Hot temperatures near 90°F 32°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds picking up from N at 2 mph 4 km/h to N at 13 mph 21 km/h.

Wednesday, September 9, 2026

Mid-Morning
Johnstown Weather - 2026-09-09 - Morning - Sunny
67°F 19°C
Sunny
Mid-Afternoon
Johnstown Weather - 2026-09-09 - Afternoon - Sunny
87°F 30°C
Sunny
Early-Evening
Johnstown Weather - 2026-09-09 - Evening - Sunny
77°F 25°C
Sunny
Very warm with a high of 87°F 30°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds shifting from the NNE to the ENE at 7 mph 11 km/h.

Thursday, September 10, 2026

Mid-Morning
Johnstown Weather - 2026-09-10 - Morning - Sunny
73°F 23°C
Sunny
Mid-Afternoon
Johnstown Weather - 2026-09-10 - Afternoon - Sunny
92°F 33°C
Sunny
Early-Evening
Johnstown Weather - 2026-09-10 - Evening - Sunny
79°F 26°C
Sunny
Very hot with temperatures reaching 92°F 33°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds turning from the WSW to the NW at 7 mph 11 km/h.

Friday, September 11, 2026

Mid-Morning
Johnstown Weather - 2026-09-11 - Morning - Overcast
76°F 24°C
Overcast
Mid-Afternoon
Johnstown Weather - 2026-09-11 - Afternoon - Partly Cloudy
91°F 33°C
Partly Cloudy
Early-Evening
Johnstown Weather - 2026-09-11 - Evening - Overcast
78°F 26°C
Overcast
Hot and sweltering around 91°F 33°C, overcast in the morning, cloudy in the afternoon, and overcast this evening, with increasing humidity and steady pressure. Winds out of the WSW at 9 mph 15 km/h.

Saturday, September 12, 2026

Mid-Morning
Johnstown Weather - 2026-09-12 - Morning - Overcast
55°F 13°C
Overcast
Mid-Afternoon
Johnstown Weather - 2026-09-12 - Afternoon - Scattered Showers
72°F 22°C
Scattered Showers
Early-Evening
Johnstown Weather - 2026-09-12 - Evening - Overcast
62°F 16°C
Overcast
Enjoyable around 72°F 22°C, scattered downpours possible, with increasing humidity and barometric pressure falling. Winds moving from the E to the SSE at 9 mph 14 km/h.

Sunday, September 13, 2026

Mid-Morning
Johnstown Weather - 2026-09-13 - Morning - Sunny
61°F 16°C
Sunny
Mid-Afternoon
Johnstown Weather - 2026-09-13 - Afternoon - Sunny
77°F 25°C
Sunny
Early-Evening
Johnstown Weather - 2026-09-13 - Evening - Cloudy
64°F 18°C
Cloudy
Mild temperatures up to 77°F 25°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and barometric pressure rising. Winds SE at 14 mph 22 km/h.

Monday, September 14, 2026

Mid-Morning
Johnstown Weather - 2026-09-14 - Morning - Sunny
49°F 9°C
Sunny
Mid-Afternoon
Johnstown Weather - 2026-09-14 - Afternoon - Sunny
67°F 19°C
Sunny
Early-Evening
Johnstown Weather - 2026-09-14 - Evening - Sunny
61°F 16°C
Sunny
Mildly cool near 67°F 19°C, sunny throughout the day, with lower humidity and steady pressure. Winds shifting from the E to the ESE at 8 mph 13 km/h.

Tuesday, September 15, 2026

Mid-Morning
Johnstown Weather - 2026-09-15 - Morning - Sunny
57°F 14°C
Sunny
Mid-Afternoon
Johnstown Weather - 2026-09-15 - Afternoon - Sunny
78°F 25°C
Sunny
Early-Evening
Johnstown Weather - 2026-09-15 - Evening - Sunny
69°F 21°C
Sunny
Pleasant near 78°F 25°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds turning from the NNW to the ENE at 7 mph 11 km/h.

Wednesday, September 16, 2026

Mid-Morning
Johnstown Weather - 2026-09-16 - Morning - Sunny
67°F 19°C
Sunny
Mid-Afternoon
Johnstown Weather - 2026-09-16 - Afternoon - Sunny
89°F 32°C
Sunny
Early-Evening
Johnstown Weather - 2026-09-16 - Evening - Sunny
76°F 24°C
Sunny
Balmy with temperatures reaching 89°F 32°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds switching from the SW to the ESE at 8 mph 13 km/h.

Thursday, September 17, 2026

Mid-Morning
Johnstown Weather - 2026-09-17 - Morning - Overcast
71°F 22°C
Overcast
Mid-Afternoon
Johnstown Weather - 2026-09-17 - Afternoon - Cloudy
90°F 32°C
Cloudy
Early-Evening
Johnstown Weather - 2026-09-17 - Evening - Overcast
79°F 26°C
Overcast
Sizzling hot with 90°F 32°C, overcast in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and barometric pressure falling. Winds moving from the WNW to the S at 9 mph 14 km/h.

Friday, September 18, 2026

Mid-Morning
Johnstown Weather - 2026-09-18 - Morning - Sunny
78°F 26°C
Sunny
Mid-Afternoon
Johnstown Weather - 2026-09-18 - Afternoon - Overcast
89°F 32°C
Overcast
Early-Evening
Johnstown Weather - 2026-09-18 - Evening - Scattered Showers
71°F 22°C
Scattered Showers
Warm temperatures up to 89°F 32°C, scattered downpours possible, with increasing humidity and steady pressure. Winds swinging from the W to the SSW at 7 mph 12 km/h.

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Weather by the Numbers

Sat, 5th
Johnstown CO Weather - Saturday, Sep 5, 2026 - Overcast
Hi: 95°F 35°C
Lo: 60°F 16°C
Sunrise 06:31 AM
Sunset 07:25 PM
Wind NE 14 mph23 km/h
Dew Point 34°F1°C
uv Index 8
Barometric Pressure 29.8 in1009 mb
POP 9% *
Humidity 12%
Sun, 6th
Johnstown CO Weather - Sunday, Sep 6, 2026 - Sunny
Hi: 91°F 33°C
Lo: 61°F 16°C
Sunrise 06:32 AM
Sunset 07:23 PM
Wind E 9 mph15 km/h
Dew Point 56°F13°C
uv Index 8
Barometric Pressure 29.83 in1010 mb
POP 1% *
Humidity 36%
Mon, 7th
Johnstown CO Weather - Monday, Sep 7, 2026 - Sunny
Hi: 90°F 32°C
Lo: 63°F 17°C
Sunrise 06:33 AM
Sunset 07:22 PM
Wind ESE 9 mph14 km/h
Dew Point 51°F10°C
uv Index 8
Barometric Pressure 29.77 in1008 mb
POP 1% *
Humidity 31%
Tue, 8th
Johnstown CO Weather - Tuesday, Sep 8, 2026 - Sunny
Hi: 90°F 32°C
Lo: 63°F 17°C
Sunrise 06:34 AM
Sunset 07:20 PM
Wind ESE 10 mph16 km/h
Dew Point 45°F7°C
uv Index 8
Barometric Pressure 29.94 in1014 mb
POP 1% *
Humidity 25%
Wed, 9th
Johnstown CO Weather - Wednesday, Sep 9, 2026 - Partly Cloudy
Hi: 87°F 31°C
Lo: 57°F 14°C
Sunrise 06:34 AM
Sunset 07:18 PM
Wind ESE 8 mph13 km/h
Dew Point 33°F1°C
uv Index 8
Barometric Pressure 30.09 in1019 mb
POP 2% *
Humidity 19%
Thu, 10th
Johnstown CO Weather - Thursday, Sep 10, 2026 - Sunny
Hi: 92°F 33°C
Lo: 59°F 15°C
Sunrise 06:35 AM
Sunset 07:17 PM
Wind W 2 mph4 km/h
Dew Point 23°F-5°C
uv Index 8
Barometric Pressure 29.83 in1010 mb
POP 0% *
Humidity 9%
Fri, 11th
Johnstown CO Weather - Friday, Sep 11, 2026 - Sunny
Hi: 91°F 33°C
Lo: 59°F 15°C
Sunrise 06:36 AM
Sunset 07:15 PM
Wind W 22 mph36 km/h
Dew Point 37°F3°C
uv Index 8
Barometric Pressure 29.59 in1002 mb
POP 1% *
Humidity 17%
Sat, 12th
Johnstown CO Weather - Saturday, Sep 12, 2026 - Patchy Rain Nearby
Hi: 72°F 22°C
Lo: 47°F 8°C
Sunrise 06:37 AM
Sunset 07:13 PM
Wind SE 10 mph16 km/h
Dew Point 40°F5°C
uv Index 4
Barometric Pressure 29.91 in1013 mb
POP 10% *
Humidity 40%
Sun, 13th
Johnstown CO Weather - Sunday, Sep 13, 2026 - Cloudy
Hi: 77°F 25°C
Lo: 51°F 10°C
Sunrise 06:38 AM
Sunset 07:12 PM
Wind E 9 mph15 km/h
Dew Point 33°F1°C
uv Index 5
Barometric Pressure 29.85 in1011 mb
POP 5% *
Humidity 22%
Mon, 14th
Johnstown CO Weather - Monday, Sep 14, 2026 - Sunny
Hi: 67°F 19°C
Lo: 42°F 6°C
Sunrise 06:39 AM
Sunset 07:10 PM
Wind E 7 mph11 km/h
Dew Point 35°F2°C
uv Index 5
Barometric Pressure 30.24 in1024 mb
POP 1% *
Humidity 39%
Tue, 15th
Johnstown CO Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 78°F 25°C
Lo: 46°F 8°C
Sunrise 06:40 AM
Sunset 07:08 PM
Wind ESE 4 mph6 km/h
Dew Point 40°F4°C
uv Index 6
Barometric Pressure 30.18 in1022 mb
POP 1% *
Humidity 32%
Wed, 16th
Johnstown CO Weather - Wednesday, Sep 16, 2026 - Sunny
Hi: 89°F 32°C
Lo: 53°F 12°C
Sunrise 06:41 AM
Sunset 07:06 PM
Wind SSE 7 mph11 km/h
Dew Point 30°F-1°C
uv Index 7
Barometric Pressure 29.91 in1013 mb
POP 0% *
Humidity 15%
Thu, 17th
Johnstown CO Weather - Thursday, Sep 17, 2026 - Sunny
Hi: 90°F 32°C
Lo: 58°F 14°C
Sunrise 06:42 AM
Sunset 07:05 PM
Wind ENE 6 mph9 km/h
Dew Point 28°F-2°C
uv Index 7
Barometric Pressure 29.77 in1008 mb
POP 0% *
Humidity 12%
Fri, 18th
Johnstown CO Weather - Friday, Sep 18, 2026 - Overcast
Hi: 89°F 32°C
Lo: 67°F 19°C
Sunrise 06:43 AM
Sunset 07:03 PM
Wind SSE 2 mph4 km/h
Dew Point 43°F6°C
uv Index 6
Barometric Pressure 29.59 in1002 mb
POP 9% *
Humidity 22%
* POP = Probability of Precipitation. Data for 12:00 PM.